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No. 749,066. PATBNTBD JAN. 5, 1904. J. P. KELLY.

DISK WATER METER.

APPLIOA'IION FILED OCT. 29, 1903.

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No. 749,066. PATENTED JAN. 5. 1904.

J. P. KELLY.

DISK WATER METER.

APPLICATION FILED 00129, 1903.

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Mir 235555-- 5 JnVEJ zzaz UNITED STATES Patented January 5, 1904.

PATENT OFFICE.

WATER METER COMPANY, OF RATION OF MASSACHUSETTS.

WORCESTER, MASSACHUSETTS, A CORPO- DISK WATER-M ETER.

SPECIFICATION forming part of Letters Patent N 0. 749,066, dated January 1904.

A Application filedOctober 29, 1903 Serial Nil-173,964. (No model.)

To all whom it may concern.-

. Be it known that 1, JOHN P. KELLY, a citizen of the United States, residing at Worcester, in the county of Worcester and State of 5 Massachusetts, have invented a new and useful Improvement in Disk Water-Meters, of which the following, together with the accompanying drawings, is a specification sufficiently full, clear, and exact to enable per- IO sons skilled in the art to which this invention appertains to make and use the same.

My present invention relates to certain features of construction and improvement devised for facilitating the manufacture with a view to attaining greater accuracy in the disk-meter mechanism while reducing cost of its production and also for rendering the running of the disk-piston and register-driving devices easier of operation and less liable to become clogged or rapidly worn in a way to injuriously afiect the operation.

The particular features or improvements which constitute my invention are hereinafter definitely specified. I

In the accompanying drawiugs,(two sheets,) Figure 1 represents a vertical section of a disk meter embodying myinvention, said sec--. tion being taken in the direction of line Y Y on Fig. 5 and showing the front side of the diaphragm. Figs. 2, 3, and 4 represent separate side views of the three parts which together form the disk-chamber casing. Fig. 5 is a plan view of the disk-chamber casing with its top head removed and the pistondisk in place therein. Fig. 6 represents a side view of the piston-disk and parts operatively connecting the same with the center pinion of the intermediate register-driving train. Fig. 7 is a fragmentary section in de- 40 tailof the center shaft-bearing. Fig. 8 shows the top end and section view of the pistonstem roller. Fig. 9 shows a bottom end and section view of the conoidal center-bearing roll. Fig. 10 represents a fragmentary vertical section through the exit-port of the diskchamber at the position of line Won Fig. 5, and Fig. 11 shows the side view of the dia-. phragm or partition for the disk-chamber.

Referring to the drawings, A denotes the outer or main casing, its lower section provided with the threaded inlet-spud aand outlet-spud a and with an interior circular flange or seat a projecting up from the bottom, with a surrounding space between it and the outer shell and upon which the diskchamber C is supported, as shown in Fig. 1, the disk-chamber casing being held in place by suitable screws (not shown) which pass down through the holes 0 and are threaded into the metal of the casing beneath. The passage of the inlet-spud a leads into the space 1 surrounding the disk-chamber and seat-flange, while the passage of the. outletspud (7.. leads directly from the space 2 beneath the disk-chamber. The main casing is separable at the position J about half the height of the disk-chamber, and it is formed with a bell-shaped portion suitable to inclose the intermediate train G of the register-driving gearing, while in its upper portion A there is arranged the usual registering mechanism, (not shown,) which is driven by the spindle and crank at R. The gear-stand 4 is supported upon the top of the disk-chamber casing, as morev fully hereinafter described.

The casing is provided adjacent to the inlet- Ct with a recess e, having grooves at the sides thereof, and a strainer-plate E is inserted therein from the joint J downward, which strainer extends across the inlet-way, as indicated in Fig. 1. The strainer is confined by the overlying portion of the casing when the parts are assembled. This manner of arranging the strainer is simple and efficient and combines a strainer with a disk meter in a practical and convenient manner.

D indicates the flat circular piston-disk having the central ball d and central projecting stem 3 perpendicular to the plane of the disk. Said disk is mounted within the chamber C for mutating action, which gives a gyrator movement to the top end of the stem about the central axis, as is well known in this class of meters.

The disk-chambercasing is formed of three parts 5, 6, and 7 of the peculiar construction shown. The central or body portion 5 is formed as a complete undivided ring having the general conformation of an equatorial zone of a sphere and of a width equaling the full height of the chamber or disk movement. Its interior surface, excepting the port-spaces, conforms to the line of motion of the periphery of the circular disk. The exterior of said body-section is provided with a central outwardly-projecting integral reinforce or ring flange 51, the outer edge of which is a circle and formed with a circumferential V shape 52, the angle of the V being disposed to exactly coincide with the central plane of the interior spheroidal surface of the ring-section and concentric to the central point of the disk-ball. The top and bottom edges of the body-section 5 are fitted with an angle-groove or seating-offset 8.. The ring flange serves as a reinforce for the body-section, so that its wall can be made comparatively thin and light, and also as a centering-guide in the manufacture of the body, enabling the interior surface to be quickly and accurately fitted and finished from either and both ends of the body, thus attaining a more perfect chamber for the disk-piston.

The upper and lower disk-chamber heads 6 and 7 are each made with the usual conoidal surface 9 to match the diskface of the piston and with a bearing-cavity for the ball d. At their edges the heads are fitted with an offset or bead face 10 to fit the groove 8 and an annular surface flange to fit the edge of the body-section. and 7, are attached to the body 5 by suitable screws at the positions 12.

Upon the outer side of each of the heads there is formed a circular concentric flange or rim 11, having a trued outer face, preferbly underbeveled, which flange serves as a guide for holding the head in the chuck while forming the coned surfaces 9, also for centering the disk-chamber within the seatflange of the main casing and centering the gear-stand when the parts are assembled.

The conoidal inner faces of the heads are radially grooved, as at 13, for respectively supporting the top and bottom edges 14 and 15 of the partition-diaphragm F, which latter consists of a flat plate, Fig. 11, having its outer curved edge 16 made to abut against the inner curved surfaceof the body and its inner end 17 to match against the ball (1, while its straight edges 14 and 15 are fitted to enter the grooves 13 in the heads.

The diaphragm F is arranged with its central plane in true radial alineinent with the center axis of the piston-disk; but the slot S in the disk for the accommodation of said diaphragm is formed in an oblique or inclined relation thereto, the slot being formed with approximately parallel edges, the back edge 5 being on a line extending toward the center of the ball d, but its front edge 8 being The heads 6- on a line extending toward a point eccentric to said center, or as shown in Fig. 5. By reason of this construction I am enabled to avoid the heretofore-practiced methods of cutting off the outer corners of the disk or providing antifriction rubbing devices at the sides of the diaphragm.

The inlet-port 20 to the disk-chamber C is formed through the side of the body 5, half above and half below the ring flange 51, and said port extends to near the edges of the body at the part 19. The outlet port is formed by an outward swell and space within the side of the body, as at 21 and opening downward (see Fig. 10) through the flange of the head 7 into the bottom chamber 2, as indicated at 22.

The space at the bottom of the exit-port is suificiently offset from the normal circle of the disk chamber to permit the circular disk of the piston to be passed into and from the chamber 0 when the head 7 is removed from the body-section.

The gear-stand 4 consists of a frame having a circular flanged foot 41, that matches upon the rim of the head-plate 6, to which it is secured, and is provided with upper and lower bearing-plates in which the shafts of the several gears that form the intermediate train G are journaled. The top bearings are formed solid over the ends of the gear-shafts, as at m, and their lower ends are provided with hardrubber collars 'n. about the journals, thereby protecting the bearings from grit deposit and rapid wear.

For supporting the center shaft 25 and the register-driving pinion 26 the frame or gearstand 4 is provided with a cylindrical bearing 24, integral therewith and depending from its center. Within said bearing there is fitted a hard-rubber bushing-tube 27, which receives the metal center shaft 25. Said shaft is formed of a piece of wire having its lower end bent or offset laterally and its upper end threaded and screwed into the pinion 26, that drives the gear-train G.

Upon the exterior of the bearing 24 a conical roll 30, of hard rubber, is arranged to turn freely concentric with the center shaft-axis. The piston stem 3 is provided with a shoulder 31 and has mounted thereon above said shoulder a roller I, comprising an upper section 32, having a metal surface, an intermediate circumferential flange 33, and a lower section of hard rubber, 35, the hard-rubberportion extending through the metal portion 32 and forming a non-metallic or hard-rubber surface throughout the interior for the bearing of the roller upon the metal stem 3, upon whichthe roller 1 is arranged to turn freely.

The metal part 32 of the stem-roller I acts against the conical face of the conoidal center bearing-roller 30, while the flange 33 engages beneath the lower end thereof and keeps said center bearing-roller up to proper position on the bearing-cylinder 24, while the lower part of the stem-roller acts against the offset end of the center shaft 25 forimparting motion thereto as the disk-piston operates.

Among the advantages of the peculiar construction herein illustrated are these: The bearing surfaces are all arranged metal against non-metal or hard rubber. The rolls are free-acting on both the center and disk spindles. The piston-stem roller I, with its flange 33, and the center roll 30 are so combined with the disk-spindle 3, the center shaft 25, and its bearings 24 that the wearing parts require no special fastening, the conical roller 30 being kept in place on its hearing by the roller I, and vice versa, while they all turn freely and will maintain their operative fit, since any wear that may occur will not derange the running relation of the parts, but the conical center roll by settling down to the roller-flange 33 will compensate for any backlash or wear as fast as it occurs.

By constructing and arranging the diskchamber casing, main casing, and gear-stand as shown said parts can be readily and accurately produced and easily assembled. When assembled, they assume a true central alinement with each other and also stand leveland plumb within the casing, while the force of the water pressure is borne by the circular seat of the lower head 7 upon the flange a and there is no liability of the water-hammer or variations of pressure aflecting the alinement or working of the running parts.

I am aware that differentlyconstructed rolls and conical guides have heretofore been employed. Therefore it willbe understood that I do not herein claim the idea broadly of a mutating disk piston nor a conical guiding means and a rollerguide for the stem of a disk piston; but my invention relates to the peculiar improved construction and manner of combining the parts as specified.

What I claim, and desire to secure by Letters Patent, is-

1. In a water-meter of the character described, in combination with a flat mutating piston-disk, a disk-chamber casing comprising an undivided annular body-section the full height of the chamber and conformed as the equatorial zone of a sphere, and the upper and lower conoidal head-plates fitting and detachably secured to the edges thereof; said body-section provided on its exterior with a central outstanding ring flange having a V- shaped circular peripheral edge coincident with the mid-plane of the chamber.

2. In a disk water-meter, in combination with the mutating disk-piston; a disk-chamher casing comprising a complete annular body-section the full height of the chamber and externally provided with a central outstanding reinforce-flange, and the upper and lower conoidal head-plates respectively fitting and secured to the top and bottom edges of the body-section, an inlet-port through the wall, partly above and partly below the flange, and an exit-port within the side of the chamber transverse to thecircle of said bodysection, with its delivery-Way at one edge thereof through the head-plate and into the space beneath the disk-chamber, substantially as set forth.

3. In a disk water-meter, the combination with the disk-piston stem having the shoulder, and the gear-stand having the tubular cylindrical depending bearing fixed theron, and the drive-pinion shaft turning within said bearing, of the annular externally-coned ring revoluble on the exterior of said bearing, and the two-section roller mounted on the piston -stem, its upper section acting against said coned ring and its lower section acting against the oifset end of the drivepinion shaft. I

4. In a disk water-meter, in combination with the disk-piston and disk-piston stem having a shoulder, and the gear-stand having the depending cylindrical center bearing with the non-metallic tubular bushing fixed therein, the center pinion-shaft turning therein, the non-metallic conical center roll mounted to turn 011 said bearing, the two-sectioned cylindrical roller mounted to turn on the piston-stem, said roller comprising a lower nonmetallic section, and an upper metal-faced section,and an intermediate collar-flange that extends under the edge of said conical center roll, for the purposes set forth.

5. Ina disk water-meter, in combination with the disk-chamber provided with a flat upright diaphragm disposed in a position radial to the axis of the piston, a disk-piston having its slot disposed in oblique relation to such radial position, as shown and described.

6. In a disk watermeter, the main casing comprising the base-section,its bottom having the circular raised seat-flange, a removable bell-shaped section above the same, the diskchamber casing provided on its top and bottom heads with annular centering flanges supported on said seat with a surrounding space within the main chamber, the gearstand frame having a depending central bean ing and provided with a circular-rim foot concentrically mounted upon the top of said diskchamber, the intermediate gear-train, the center drive-pinion therefor, and the center shaft turning in said bearing; in combination with the disk-piston, piston-stem, and means for transmitting motion therefrom to said center shaft, substantiallyas set forth.

7. In a disk meter, in combination as described, the main casing comprising upper and lower sections, its lower section provided upon its bottom interior with an upwardlyprojecting seating-flange dividing the central bottom chamber from the surrounding space, the oppositely-disposed inlet and outlet spuds, inlet and outlet passages formed in the casing, with the outlet-passages leading directly out from said central bottom chamber and the inlet-passage leading into the surround- & 749,066

ing space, the disk-chamber comprising a body-section with detachable top and bottom conoidal head-plates, said bottom head-plate having an underrim-surface centering and matching upon said seat-flange, and supporting the disk-chamber with clear surrounding space within the main chamber, the gearstand having a circular base centeringiy supported upon the top head-rim, the mutating disk-piston,the intermediate register-driving [O train,and means for actuating the center shaft of said train.

Witness my hand this 27th day of October, 1903.

JOHN P. KELLY. Witnesses:

CHAS. H. BURLEIGH, JOHN P. K. OTIS. 

